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David L. Schumacher

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  • Shelby Township, MI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method for assembling an intake manifold
    • Patent number 6,260,528
    • Issue date Jul 17, 2001
    • Borg-Warner Inc.
    • Hal E. Pringle
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Short runner valve shaft biasing assembly
    • Patent number 5,992,370
    • Issue date Nov 30, 1999
    • Borg-Warner Automotive, Inc.
    • Hal E. Pringle
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS